If using the built in Maps application (Google Maps), you are still required to have a data connection (3G or wifi) because the maps are not stored locally and need to load. While the device GPS can track your location, you wont have the maps without a data connection.

You can use applications which do store maps locally as an alternative, but there isn't many for iPad just yet as someone mentioned. If you have one of the iphone ones, they work as well.

One great one that I use for marine navigation and boating is iNavX, makes great use of screen real estate and GPS works even with no service

Does my iPhone 3GS have exactly the same GPS setup as my iPad 3G (64gb)?

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Yes.

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Thanks Adam. Haven't yet tried Navigon with the iPad, however it works fairly well with my iPhone. I had assumed the occasional dropout was due to poor triangulation from available cell towers. But since it has GPS I assume those events are just poor GPS reception.

Which leads to the question; might the antenna on the iPad work a bit better, and, are there any passive antennas that actually improve GPS reception?

I suspect there are many that claim to help, but I suspect most do little or nothing.

Certainly love my iPhone... and after 24hrs, the iPad makes browsing simpler on these 67 year old eyes.

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